EP2360403B1 - Actionneur de soupape avec couplage de limitation du couple réglable - Google Patents

Actionneur de soupape avec couplage de limitation du couple réglable Download PDF

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Publication number
EP2360403B1
EP2360403B1 EP10153357A EP10153357A EP2360403B1 EP 2360403 B1 EP2360403 B1 EP 2360403B1 EP 10153357 A EP10153357 A EP 10153357A EP 10153357 A EP10153357 A EP 10153357A EP 2360403 B1 EP2360403 B1 EP 2360403B1
Authority
EP
European Patent Office
Prior art keywords
shaft
actuator
housing
manual
latching
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP10153357A
Other languages
German (de)
English (en)
Other versions
EP2360403A1 (fr
Inventor
Daniel BÜHLER
Jörg Evertz
Martin Sprecher
Uwe Werner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Priority to EP10153357A priority Critical patent/EP2360403B1/fr
Priority to DK10153357.8T priority patent/DK2360403T3/da
Priority to ES10153357T priority patent/ES2394267T3/es
Priority to US12/929,739 priority patent/US8490943B2/en
Priority to CN201110078000XA priority patent/CN102155578B/zh
Publication of EP2360403A1 publication Critical patent/EP2360403A1/fr
Application granted granted Critical
Publication of EP2360403B1 publication Critical patent/EP2360403B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
    • F16K31/05—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor specially adapted for operating hand-operated valves or for combined motor and hand operation
    • F16K31/055—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor specially adapted for operating hand-operated valves or for combined motor and hand operation for rotating valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
    • F16K31/047—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor characterised by mechanical means between the motor and the valve, e.g. lost motion means reducing backlash, clutches, brakes or return means
    • F16K31/048—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor characterised by mechanical means between the motor and the valve, e.g. lost motion means reducing backlash, clutches, brakes or return means with torque limiters

Definitions

  • the invention relates to the technical field of heating ventilation and air conditioning.
  • the present invention particularly relates to an actuator for a valve, in particular for a valve of a heating, ventilation and / or air conditioning.
  • a heat transfer medium In many applications in heating, ventilation and air conditioning (HVAC), a heat transfer medium is used to transfer thermal energy from a source to a destination.
  • the transmission of thermal energy may serve to heat a room or area within a building.
  • the heat transfer medium absorbs thermal energy at the source location and at least partially releases it again after being transported to the destination.
  • the transfer of thermal energy may also serve to cool a room or area within a building.
  • the heat transfer medium absorbs heat energy at the destination and at least partially releases the heat energy at the source location.
  • the heat transfer medium may be any fluid. In most cases, water is used. Water has the advantage that it has a high specific heat capacity and thus can transport a particularly large amount of heat per unit of mass.
  • valves are used, which are also referred to as HVAC valves.
  • HVAC valves By means of a so-called.
  • Shut-off or throttle valve for example, the flow rate of the heat transfer medium can be adjusted.
  • a multi-way valve can be a suitable mixing of located at a certain temperature level Heat transfer medium realized with a located at a different temperature level heat transfer medium and thus become an adjustment of the heat output.
  • WSR (With Spring Return) Drives This type of valve drive has a motor, a return spring, and a manual adjuster as potential sources of energy.
  • an ESC drive is operated in the so-called auto mode with the motor. However, if a supply voltage to the motor fails, the return spring closes the valve operated by the drive. If no supply voltage is applied to the motor, then the ESC drive can be opened manually and in one be locked in any position. As soon as the supply voltage is restored, the ESC drive is unlocked again and the ESC drive goes into automatic mode control mode.
  • TSR TÜV Spring Return Actuators
  • spring return actuators Such valve actuators, which are also known as spring return actuators, these have as possible sources of energy, a motor and a return spring.
  • TSR drives must not have a manual adjustment device. In the event of a power failure, the return spring automatically closes the HVAC valve coupled to the TSR drive.
  • Actuators for HVAC valves must have a number of technical characteristics and / or meet technical requirements to be used in practice for HVAC systems. For example, depending on the operating mode, a suitable actuator must be able to switch one of the three energy sources “motor”, “return spring” and “manual adjuster” to a movable throttle element of an HVAC valve.
  • the torque which can act on the valve or on a transmission of the drive by means of the manual adjusting device should be limited by a suitable overload clutch, so that a deliberate and / or accidental damage of the actuator and / or valve can be prevented.
  • Known torque limiting devices for HVAC valves are technically relatively complex and also inflexible because a given maximum torque to be transmitted can not be varied.
  • the invention has for its object to provide an actuator for a valve which has a simple and at the same time with respect to the maximum torque to be transmitted flexible torque limiter.
  • an actuator for a valve in particular for a valve of a heating, ventilation and / or air conditioning is described.
  • the actuator described has (a) a housing, (b) a shaft which is at least partially arranged in the housing and which can be coupled directly or indirectly to the valve so that upon rotation of the shaft the valve is adjustable (c ) a manual operating member which is couplable to the shaft, and (d) an overload clutch which is disposed between the manual operating member and the shaft and which restricts a torque transmitted from the manual operating member to the shaft to a predetermined maximum value.
  • the overload clutch has a coupling element and an exchangeable spring element which presses the coupling element against the shaft, so that the maximum value for the transmittable torque depends on the exchangeable spring element.
  • the described actuator drive is based on the knowledge that by a suitable choice of the exchangeable spring element, the maximum torque which can be transmitted from the overload clutch can be adapted to the respective requirements in a simple and efficient manner. This means that the triggering torques of the overload clutch described can be tailored to different values depending on the choice of the spring element.
  • the replaceable spring element can for example be dimensioned so that on the one hand a reliable manual adjustment of the valve is possible and that on the other hand, when the valve, for example, in its open or closed end position, damage to the valve or arranged between the valve and actuator transmission can be reliably prevented even with a powerful operation of the manual operating element.
  • the maximum value for the torque transmission may in particular be dependent on the shape, on the size and / or on the material of the spring element. These parameters can determine the elasticity or the resilience of the replaceable spring element.
  • the clamping force can in turn determine the bearing force between the coupling element and the shaft. Of course, the clamping force and thus the contact force or the contact pressure between the coupling element and shaft also depends on the position of the spring element relative to the coupling element.
  • the force or torque transmission between coupling element and shaft can be based on various interactions.
  • a frictional force can occur between the coupling element and the shaft, which depends on the two mutually facing surfaces of coupling element and shaft.
  • at least one of the two surfaces may be a rubber surface, which ensures a high degree of friction and thus prevents premature slippage of the overload clutch.
  • the two mutually facing surfaces can also have a certain roughness, which in addition to the contact pressure also represents an important parameter for the transmittable torque or the transmittable force.
  • the friction between coupling element and shaft can also be caused by the magnetic field of one or more magnets, in particular permanent magnets, which are attached to the shaft and / or to the coupling element.
  • the manual actuating element can be, for example, a simple handwheel, which is actuated by an operator for a manual adjustment of the valve.
  • the replaceable spring element is attached to a housing of the manual actuating element.
  • the replaceable spring element can be inserted in a correspondingly shaped recess of the housing.
  • the housing for the replaceable spring element is a suitable receptacle.
  • the replaceable spring element can be easily inserted, for example, in the receptacle or the recess.
  • the spring element can then be fixed in the receptacle or recess and thus in its intended position. This can be done automatically by other components of the actuator, so that no separate step is required to fix the spring element.
  • a suitable locking mechanism such as a securing element can be used to reliably fix the spring element in its receiving or recess.
  • the receptacle in the housing is designed such that different spring elements, which each exert a different force or a different pressure on the spring element, can be accommodated.
  • the various spring elements may also be designed such that they have the same or at least similar outer dimensions and thus facilitate in a simple manner an application-specific variant equipment of the actuator with different, different strong spring elements.
  • the exchangeable spring element in the form of an elongated strip. Furthermore, the exchangeable spring element is at least partially made of an elastic material, in particular of metal.
  • the replaceable spring element can represent a simple leaf spring.
  • the described shape may have the advantage that the replaceable spring element can be produced in a particularly simple manner. Furthermore, the thus formed replaceable spring element can easily be connected to the o.g. Housing be attached.
  • the coupling element has a first toothing and the shaft has a second toothing.
  • the first toothing and the second toothing engage at least partially in one another.
  • the coupling element In the assembled state of the actuator, the coupling element can at least partially surround the shaft, the first toothing of the coupling element and the second toothing of the shaft at least partially interlocking.
  • the described one-toothed overload clutch can be realized in a simple way to the effect that the respective release torque is within a more or less precisely predetermined tolerance range. Furthermore, an operator can be given a well-noticeable feedback in the event of tripping or opening of the overload clutch. Thus, the operator can feel the triggering of the overload clutch, for example, by a caused by a relative movement of the two gears vibration and / or hear by a corresponding vibration or ratcheting noise.
  • the actuator further comprises a motor which is coupled to the shaft.
  • the actuator and thus also the valve moved by the actuator can be automatically brought to a desired target position.
  • the actuator further comprises a working spring which can be coupled to the shaft.
  • the working spring can serve to automatically transfer the actuating device to a preferred position upon release of the manual operating element and / or in the event of a power failure. This can be significant in particular for safety-relevant applications.
  • the actuator further comprises a further shaft, which is directly or indirectly coupled to the valve, and a coupling mechanism, which is arranged between the further shaft and the shaft.
  • the coupling mechanism is configured such that (a) in a first operating state, the manual operating element is decoupled from the further shaft and (b) in a second operating state, the manual operating element is coupled to the further shaft.
  • the coupling mechanism may be, for example, an engagement clutch, in which the further shaft, which also as lower Shaft can be designated, and the shaft are not rigidly connected to each other in the second operating state when the overload clutch is not triggered and in the first operating state are at least partially decoupled from each other.
  • the coupling ie, a transition from the first to the second operating state, can preferably take place by interengagement of different components of the coupling mechanism.
  • a decoupling, ie a transition from the second to the first operating state can be done by a mutual release of the various components.
  • the first operating state can also be referred to as a freewheeling state and the second operating state as a coupling state.
  • the first operating state can also be referred to as a normal operating state, since manual operation or valve adjustment is not required during normal operation of the actuator.
  • the second operating state can be set, for example, when maintenance work and / or conversions to an HVAC system are required and should be carried out in a simple and efficient manner.
  • one of the two operating states is when the further shaft is in a disengaged position with respect to the shaft. Further, the other of the two operating conditions is when the other shaft is in an engaged position with respect to the shaft.
  • the first operating state or the freewheeling state is preferably present when the manual actuating element is disengaged or pulled out relative to at least one other component of the actuating drive. Accordingly, the second operating state or the coupling state is present when the manual operating element is indented or pressed in relation to the at least one other component.
  • the indented state may also be referred to as a "hand-mode push" state.
  • the hand-operated element When the hand-operated element is engaged, it is coupled into or onto the shaft.
  • any existing motor which can also drive the shaft, be decoupled from the shaft.
  • the actuator or operated with the actuator valve can be adjusted by a simple movement of the manual operating element, without causing accidental damage to the engine or connected to the engine gearbox would be.
  • the actuator further comprises a slip clutch, which is also arranged between the further shaft and the shaft and which is arranged such that, even if the coupling mechanism is in the first operating state, upon rotation of the other Wave turns the shaft.
  • the hand-operated element coupled to the shaft can not only be used to actively manually drive the shaft, but also that the hand-operated element can act as a display device for a rotation of the further shaft, which indicates to the operator by means of a separate rotation of an operator that the further shaft is rotated by another source of energy.
  • slip clutch which typically can transfer only a very small torque from the other shaft to the shaft, coupled to the shaft and otherwise at least approximately free-running hand actuator is an indicator that caused rotation of the shaft by its own not by an operator Indicates rotation.
  • the other source of energy may be, for example, a motor and / or a working spring, which can drive the shaft of an actuator for an HVAC valve in a known manner or can.
  • the slip clutch can transmit only a very small torque compared to the overload clutch described above.
  • An at least approximately free-running manual operating element can therefore be put on the slip clutch in a rotary motion.
  • the sliding clutch can reliably prevent a malfunction of the actuator.
  • the actuator further comprises a locking element which is attached to the manual actuating element and which is designed such that upon activation of the locking element, an adjustment of the manual actuating element is prevented relative to the housing.
  • the locking element can be activated for example for maintenance and / or conversion work on an HVAC system. Even with an existing electrical cable connection to the engine (with any electrical motor control), an unintentional adjustment of the actuator can be prevented. A complicated release of electrical connections, as required in the case of known HVAC actuators for maintenance, is no longer necessary in the case of the actuator described here. Thus, maintenance and / or conversion work can be performed much faster.
  • the locking element is in relation to the longitudinal axis of the shaft radially displaceable.
  • the locking element can be brought into engagement with the housing of the actuator in a suitable manner.
  • the activation of the locking element by means of a radial displacement has the advantage that the manual operating element can be locked by an operator by a simple hand movement, possibly even only by the movement of a single finger.
  • the engagement between the locking element and the housing prevents unwanted rotation of the manual actuating element.
  • the locking element can also be brought into engagement with the housing in relation to the shaft in the axial direction. This can be done for example by a gripping on a projection of the housing of the actuator. Thereby, a displacement of the manual actuating element in the axial direction can be prevented. In particular, an accidental transition of the manual actuating element from the first operating state to the second operating state and vice versa can be prevented.
  • the locking element described herein can be used both for said radial engagement and simultaneously for said axial engagement. As a result, a locking of the manual actuating element with respect to all possible directions of movement can be achieved in a simple manner.
  • Auto mode means that the actuator is operated by a motor.
  • the actuator further comprises a latching element which is arranged between the manual actuating element and the housing and which has a first latching area and a second latching area.
  • the first latching area is set up to engage in a first surface contour of the manual actuating element.
  • the second latching area is set up to engage in a second surface contour of the housing.
  • the first surface contour of the manual actuating element may, for example, have a plurality of projections which protrude radially outwards from a central shaft of the manual actuating element.
  • the projections may be, for example, pins, pins, cams or any other type of projections, which come for a mechanical engagement between the manual actuator and latch member in question.
  • the latching element In the case of an engagement from the first latching area into the first surface contour, it is ensured, for example, that the latching element also rotates with the manual actuating element during a rotation of the manual actuating element.
  • this is only possible if the second latching area does not simultaneously engage in the second surface contour formed on the housing.
  • the first surface contour and the first latching region preferably have a complementary shape to each other, so that a reliable intervention is possible. The same can apply to the shaping of the second latching area and the second surface contour.
  • the latching element is designed in such a way that (a) the possibility of engagement of the first latching area in the first surface contour and / or (b) the possibility of engagement of the second latching area in the second surface contour depends on which position the manual actuator is located. This can mean that the position or the position of the manual actuating element has an influence on the action of the latching element.
  • the action of the latch member may be disabled or prevented when the manual actuator is in a disengaged position with respect to the shaft.
  • the above-described action of the latch member may be activated or enabled when the manual actuator is in an engaged position with respect to the shaft.
  • An operator can possibly activate or enable the effect of the latching element by simply engaging or pressing the manual actuating element and deactivate or prevent the effect of the latching element by disengaging or pulling away the manual actuating element.
  • the second latching region of the latching element and / or the second surface contour of the housing are shaped such that the latching element has a backstop functionality with respect to the housing.
  • the backstop functionality described may have the advantage that after an actuation of the manual actuating element, an undesired return of the manual actuating element can be prevented in a simple manner, in particular by the spring force of a working spring.
  • the backstop functionality can for example be based on the principle of a so-called. Pawl, in which the second latching and / or the second surface contour has a toothing with asymmetrical tooth flanks.
  • the backstop functionality can be designed such that the backstop can be deactivated by a slight movement, in particular by a small rotation of the manual operating element in a predetermined direction.
  • a deactivating movement of the manual actuating element can be effected for example by a motor of the actuator which is coupled to the shaft.
  • the latching element can be released from barbs which are formed on the respective latching region and / or on the respective surface contour.
  • a rotation of the manual actuator in (counter) clockwise direction may be associated with only a small resistance. During this rotation, an operator can then feel a vibration and / or hear by a corresponding vibration or ratchet noise. In contrast, a counterclockwise rotation due to the pawl action described is inhibited.
  • the actuator further comprises a lifting spring, which acts on the manual actuating element and exerts a force along the axial direction of the shaft on the manual actuating element.
  • the lifting spring In order to exert the force on the manual element, the lifting spring must additionally attack on another component of the actuator.
  • This other component may be, for example, the shaft.
  • the lifting spring presses the o.g. Shaft, which represents an upper central shaft, from the o.g. another wave, which represents a lower central shaft away.
  • the described lifting spring has the advantage that the manual operating element can be brought into different axial positions relative to the shaft by a simple operating engagement of an operator.
  • the different axial positions may be, for example, the positions described above and associated with different operating states of the manual operating element, in particular the disengaged position and the engaged position.
  • the latching element can be activated by a combination of a displacement movement of the manual actuating element along the axial direction and a clockwise rotation of the above-mentioned latching element.
  • a locked position lock state
  • the latching element to prevent undesired adjustment of the drive by a working spring of the actuator.
  • the locking of the manual actuating element can take place in that during a manual rotary movement of the manual actuating element, a comparatively strong working spring is tensioned. Upon release of the manual operating element, the working spring then rotates the hand-operated element somewhat back until a next toothing engages between the latching element and the housing. Since the working spring is typically comparatively strong, a high frictional force arises between the above-described projections of the manual actuating element and the latching element. This frictional force can not be overcome by the much weaker lifting spring, so that the manual actuating element remains in the corresponding axial position. In this position, a rotation of the manual actuating element is prevented by the latching element. As a result, in spite of the force effect of the working spring, both the manual operating element and the shaft remain in a stable (rotational) position.
  • the delocking of the manual actuating element can preferably be carried out as follows:
  • the motor is operated so that it always moves first in one direction (for example, an opening direction of the valve).
  • the above-described projections of the manual actuating element and the first latching region of the latching element are unlocked.
  • the clamping force of the working spring no longer acts on the manual actuating element and the frictional force described above is reduced accordingly.
  • the clamping force of the lifting spring can then be strong enough to lift the manual control element.
  • the motor can then move the shaft freely and in particular undisturbed by the manual actuating element.
  • FIG. 1 shows a perspective exploded view of a manual adjuster for an actuator 100 according to an embodiment of the invention.
  • the actuator 100 has a shaft 120, which may also be referred to as a central upper shaft. Namely, the central upper shaft 120 may be engaged with the snap-in projections 126 by means not shown central lower shaft are connected, which in turn is optionally coupled via a transmission with an HVAC valve (not shown).
  • the actuator 100 further includes a manual actuator 130, which is a simple handwheel according to the embodiment shown here.
  • the handwheel 130 may be manually rotated by an operator using, for example, handles 131.
  • the manual actuating element 130 comprises a housing 132, in which two receiving regions 134 are formed. On the housing 132, two snap projections 136 are further formed so that the manual operating member 130 can be snapped into the shaft 120. In this case, the housing and the snap projections 136 are formed so that the manual actuating element 130 can be rotated to the shaft 120.
  • a toothing 123 is further formed, which constitutes a part of an overload clutch 140.
  • the overload clutch 140 has, in addition to the toothing 123, a coupling element 142 to which a toothing 143 is likewise attached.
  • the toothing 143 is at least approximately complementary to the toothing 123, so that the two toothings can engage in one another. Depending on the force with which the two gears 123 and 143 press against each other or abut each other, there is a maximum torque which can be transmitted from the housing 132 to the shaft 120.
  • the annular coupling element 142 which has a bulge 144, can be received in the housing 132 of the manual actuating element 130 in a manner safe against rotation. This means that depending on the force with which the two gears 123 and 143 against each other Press, a maximum torque from the manual actuator 130 are transmitted to the shaft 120.
  • the force with which the two gears 123 and 143 press against each other can be adjusted by the use of different strong spring elements 148a, 148b, 148c.
  • One spring element is in each case introduced into one of the two receiving regions 134 and then abuts on the outside of the coupling element 142 or on a toothed region 143.
  • the different spring elements 148a, 148b, 148c differ by different sized cutouts.
  • the spring elements 148a, 148b, 148c differ in different local widths, which in turn means that (a) the two spring elements 148c exert a comparatively large spring force on the teeth 143, that (b) the two spring elements 148b have an average spring force exert on the teeth 143 and that (c) the two spring elements 148 a exert a comparatively small spring force on the teeth 143.
  • the maximum torque that can be transmitted by means of the overload clutch from the manual operating element 130 to the shaft 120 can be selected.
  • the outer dimensions of the spring elements 148a, 148b and 148c which each represent the function of a leaf spring, are at least approximately equal.
  • the outer dimensions of the spring elements 148a, 148b and 148c which each represent the function of a leaf spring, are at least approximately equal.
  • the actuator 100 can thus be optimally adapted to the respective requirements by a variant assembly by the choice of a suitable replaceable leaf spring 148a, 148b or 148c the maximum transferable torque.
  • FIG. 2 shows in a perspective view a slip clutch 250, which is arranged between the shaft 120 and a shaft 290.
  • a slip clutch 250 By means of the slip clutch 250, a certain torque can also be transmitted from the shaft 290 to the manual operating element 130. However, this torque is significantly smaller compared to the maximum torque which can be transmitted by means of the overload clutch 140.
  • the slip clutch 250 is used to rotate with a rotation of the shaft 290 and the manual operating element 130, if this is otherwise freely rotatable and in particular not locked.
  • This has the advantage that an adjusting movement of the drive, which is caused for example by a motor, not shown, and / or by a working spring 260, is indicated by a corresponding rotation of the manual operating element 130.
  • the manual actuating element 130 thus represents upon rotation of the shaft a rotating indicator, on which an operator can easily detect an adjusting movement of the drive.
  • the shaft 290 is a lower central shaft, which over the in FIG. 1 shown snap projections 126 is connected to the shaft 120.
  • the lower central shaft 290 can directly or via a not shown gear with a likewise in FIG. 2 be coupled not shown HVAC valve.
  • FIG. 3 shows in a perspective view a part of an actuator 300 with a manual actuation element 130, which has a radially displaceable locking element 370 for locking the manual actuation element 130.
  • the radially displaceable locking element 370 points next to the in FIG. 3 recognizable upper part still on a lower part. If the locking element 370 is in a radially outwardly displaced position, the lower part of the locking element 370 engages in a projection of the housing 310 of the actuator 300. Due to the engaging locking element 370, the manual operating element 130 can be locked in terms of its angular position and / or with respect to its axial displacement.
  • an engagement opening 371 is formed in the housing 132 of the manual actuating element 130.
  • the housing 310 has some vom mit nurser 311, with which the function of the actuator 300 can be checked with the housing closed. Further, the housing 310, which is a one-piece plastic part according to the embodiment shown here, a cover 312 for a motor, not shown. An opening 313 in the housing serves as a cable clamp for the actuator.
  • FIG. 4 shows in a perspective exploded view of a part of an actuator 400, which has a arranged between the manual actuating element 130 and the housing 310 latching element 480.
  • the latching element is a latching ring 480.
  • the latching ring 480 is formed so that upon depression of the manual actuating element 130 in the direction of the housing 310 in the FIGS. 1 and 2 Cams 125 engage in the latching ring 480. Thus, inevitably rotates with a rotational movement of the manual actuating element 130 of the latching ring 480.
  • the shaft 120 is further coupled to the manual operating element 130 in the embodiment shown here.
  • the latching ring 480 further has on its outer side an asymmetrically toothed surface, which in conjunction with a corresponding inner surface of the housing 310 represents a backstop functionality.
  • the manual operating member 130 in the engaged state of the manual operating member 130, the manual operating member 130 can be rotated together with the shaft 120 in only one direction, for example, in the clockwise direction.
  • a rotation of the shaft 120 in the opposite direction, for example, counterclockwise, is reliably prevented by the backstop functionality.
  • the actuator 400 can remain in its end position after a manual operating intervention in which the manual operating element 130 has been engaged and, if necessary, also turned in one direction.
  • the rotational angular position of the shaft 120 can be locked in the manually set position.
  • the actuator 500 has a manual actuating element 130, which in turn has a radially displaceable locking element 370 for locking the manual actuating element 130.
  • the actuator 500 corresponds to the in FIG. 3 illustrated actuator 300th
  • FIG. 5a shows the actuator 500 in its normal state (Auto Mode). This means that the actuator 500 by means of a motor, not shown, which acts on the shaft 120, operated. In this case, the manual actuating element 130 is in a disengaged or upper position. The manual actuator 130 is apart from the in FIG. 2 shown slip clutch 250 of the shaft 120 decoupled.
  • FIG. 5b shows the actuator 500 at the beginning of a manual operator intervention by an operator.
  • the operating engagement comprises a push-down of the manual actuating element 130, which in FIG. 5b is illustrated by the vertical arrow.
  • a lifting spring 260 is compressed and it is a mechanical coupling between the manual element 130 and the shaft 290 produced.
  • the shaft 290 can be rotated by rotation of the manual actuating element 130 in the desired manner. This allows the operator to set a coupled to the shaft 290 valve in any position.
  • FIG. 5d shows in an enlarged view how engages in the housing 310 according to the embodiment shown here, the locking element.
  • the locking member 370 has an upper part 570a, a connecting rib 570c and a lower part 570b.
  • an operator engages the locking member to move it radially outward.
  • the lower part 570b engages in corresponding structures of the housing 310 after a corresponding radial movement.
  • the manual actuating element 130 is secured against rotational movements as well as against axial displacement.
  • FIGS. 6a and 6b each show in a cross-sectional view an actuator 600 having the lifting spring 260.
  • the actuator has a latching element arranged between the manual actuating element 130 and the housing, which provides a backstop functionality.
  • the actuator 600 corresponds to the in FIG. 4 illustrated actuator 400.
  • FIG. 6a shows the actuator 600 in its normal state (Auto Mode). This means that the actuator 600 is operated by means of a motor, not shown, which acts on the shaft 120. In this case, the manual actuating element 130 is in a disengaged or upper position. The manual actuator 130 is apart from the in FIG. 2 shown slip clutch 250 from the shaft 290 decoupled.
  • FIG. 6b shows the actuator 600 at the beginning of a manual operation by an operator.
  • the operating engagement comprises a push-down of the manual actuating element 130, which in FIG. 6b is illustrated by the vertical arrow.
  • the lifting spring 260 is compressed and a mechanical coupling between the manual operating element 130 and the shaft 290 is produced.
  • the shaft 290 can be rotated by rotation of the manual actuating element 130 in the desired manner. This allows the operator to set a coupled to the shaft 290 valve in any position.
  • the locking of the manual actuating element 130 takes place in that by the manual rotational movement of the manual actuating element 130, the working spring is tensioned.
  • the working spring When releasing the manual operating element 130, the working spring then rotates the manual operating element 130 back slightly until a toothing between the in FIG. 4 shown latch member 480 and the housing 310 engages. This creates a high frictional force between the in the FIGS. 1 and 2 illustrated cam 125 and the latch member 480 so that the manual actuator 130 remains in the corresponding axial position. In this position is by the latch 480 a rotation of the manual operating element 130 is prevented.
  • both the manual operating element 130 and the shaft 120 remain in a stable (rotational) position.
  • the delocking of the manual actuating element takes place according to the exemplary embodiment illustrated here in that the motor, not shown, is operated in such a way that it always first moves in the clockwise direction.
  • the cams 125 see FIGS. 1 and 2
  • the clamping force of the working spring no longer acts on the manual actuating element 130 and thus the above-mentioned frictional force is considerably reduced.
  • the clamping force of the lifting spring is then sufficiently strong to raise the manual operating element 130.
  • the motor can then move the shaft freely in both directions of rotation.
  • actuators described here can be produced as part of a uniform production process by a suitable variant assembly. This means that within a platform for actuators for HVAC valves variant actuators different actuators with different switching logic can be realized. Furthermore, within the same platform also another so-called. TSR (TÜV Spring Return) actuator can be made, which has already been described above in the introduction to this document.
  • FIGS. 1 . 2 . 3 . 5a . 5b . 5c and 5d actuator which is an NSR (Non Spring Return) actuator
  • NSR Non Spring Return
  • the following functionalities are assigned: (a) indicator for rotating the shaft, (b) switching between engine and Manual operation, (c) locking of the manual actuating element by radially displaceable locking element and (d) overload clutch to avoid damage to drive elements.
  • actuator which is a WSR (With Spring Return) actuator
  • the following functionalities can be assigned as part of the aforementioned variant assembly: (a) indicator for rotating the shaft, (b) locking of the manual actuating element by the arranged between the manual actuating element and the housing Snap-in element and (c) Overload clutch to prevent damage to drive elements (for example, a motor and / or a transmission).

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electrically Driven Valve-Operating Means (AREA)
  • Mechanical Operated Clutches (AREA)
  • Transmission Devices (AREA)
  • Mechanically-Actuated Valves (AREA)

Claims (12)

  1. Actionneur de soupape, notamment de soupape d'une installation de chauffage, de ventilation et/ou de climatisation, l'actionneur (100, 200, 300) comprenant
    • un logement (310),
    • un arbre (120) qui est disposé, au moins en partie, dans le logement (310) et qui peut être accouplé directement ou indirectement à la soupape de manière à ce que la soupape puisse être réglée avec une rotation de l'arbre (120),
    • un élément d'actionnement manuel (130) qui peut être accouplé à l'arbre (120) et
    • un accouplement de surcharge (140) qui est situé entre l'élément d'actionnement manuel (130) et l'arbre (120) et qui limite à une valeur maximale prédéfinie un couple qui est transmis de l'élément d'actionnement manuel (130) à l'arbre (120),
    l'accouplement de surcharge (140) comprenant un élément d'accouplement (142) et un élément élastique interchangeable (148a, 148b, 148c) qui presse l'élément d'accouplement (142) contre l'arbre (120) de manière à ce que la valeur maximale du couple pouvant être transmis dépende de l'élément élastique interchangeable (148a, 148b, 148c),
    l'élément élastique interchangeable (148a, 148b, 148c) étant placé au niveau d'un logement (132) de l'élément d'actionnement manuel (130) et étant fabriqué, au moins en partie, dans un matériau élastique, notamment un métal,
    caractérisé en ce que
    l'élément élastique interchangeable (148a, 148b, 148c) a la forme d'une bande allongée et peut être inséré dans un évidement (134) de forme correspondante du logement (310) et
    en ce que l'élément d'accouplement (142) est pourvu d'une première denture (143) et l'arbre (120) est pourvu d'une seconde denture (123), la première denture (143) et la seconde denture (123) s'engrenant au moins partiellement l'une dans l'autre.
  2. Actionneur selon la revendication précédente, comprenant, en outre,
    • un moteur qui peut être accouplé à l'arbre (120).
  3. Actionneur selon l'une des revendications précédentes, comprenant, en outre,
    • un ressort de travail qui peut être accouplé à l'arbre (120).
  4. Actionneur selon l'une des revendications précédentes, comprenant, en outre,
    • un deuxième arbre (290) qui peut être accouplé directement ou indirectement à la soupape et
    • un mécanisme d'accouplement qui est situé entre le deuxième arbre (290) et l'arbre (120) et qui est adapté pour que le mécanisme d'accouplement
    - désaccouple le deuxième arbre (290) de l'arbre (120) dans un premier état de fonctionnement et
    - accouple le deuxième arbre (290) à l'arbre (120) dans un deuxième état de fonctionnement.
  5. Actionneur selon la revendication précédente,
    • l'un des deux états de fonctionnement existant lorsque le deuxième arbre (290) se trouve dans une position désenclenchée par rapport à l'arbre (120) et
    • l'autre des deux états de fonctionnement existant lorsque le deuxième arbre (290) se trouve dans une position enclenchée par rapport à l'arbre (120).
  6. Actionneur selon l'une des revendications 4 à 5, comprenant, en outre,
    • un accouplement patinant (250) qui est également situé entre le deuxième arbre (290) et l'arbre (120) et qui est adapté pour que l'arbre (120) tourne lors d'une rotation du deuxième arbre (290), même lorsque le mécanisme d'accouplement se trouve dans le premier état de fonctionnement.
  7. Actionneur selon l'une des revendications précédentes, comprenant, en outre,
    • un élément de verrouillage (370) qui est placé au niveau de l'élément d'actionnement manuel (130) et qui est exécuté de manière à empêcher un déplacement de l'élément d'actionnement manuel (130) par rapport au logement (310) lorsque l'élément de verrouillage (370) est actionné.
  8. Actionneur selon la revendication précédente,
    l'élément de verrouillage (370) pouvant être déplacé radialement par rapport à l'axe longitudinal de l'arbre (120).
  9. Actionneur selon l'une des revendications précédentes 1 à 6, comprenant, en outre,
    • un élément d'encliquetage (480) qui est situé entre l'élément d'actionnement manuel (130) et le logement (310) et qui comprend une première zone d'encliquetage et une seconde zone d'encliquetage, la première zone d'encliquetage étant adaptée pour s'enclencher dans un premier contour de surface de l'élément d'actionnement manuel (130) et la seconde zone d'encliquetage étant adaptée pour s'enclencher dans un second contour de surface du logement (310).
  10. Actionneur selon la revendication précédente, l'élément d'encliquetage (480) étant exécuté de manière à ce que
    - la possibilité d'enclenchement de la première zone d'encliquetage dans le premier contour de surface et/ou
    - la possibilité d'enclenchement de la seconde zone d'encliquetage dans le second contour de surface dépende/nt de la position dans laquelle se trouve l'élément d'actionnement manuel (130).
  11. Actionneur selon la revendication précédente, la seconde zone d'encliquetage de l'élément d'encliquetage (480) et/ou le second contour de surface du logement (310) étant formé/s de manière à ce que l'élément d'encliquetage (480) ait une fonction antiretour par rapport au logement (310).
  12. Actionneur selon l'une des revendications précédentes 1 à 11, comprenant, en outre,
    • un ressort de levage (260) qui est en prise avec l'élément d'actionnement manuel (130) et exerce une force sur l'élément d'actionnement manuel (130) le long de la direction axiale de l'arbre (120).
EP10153357A 2010-02-11 2010-02-11 Actionneur de soupape avec couplage de limitation du couple réglable Active EP2360403B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP10153357A EP2360403B1 (fr) 2010-02-11 2010-02-11 Actionneur de soupape avec couplage de limitation du couple réglable
DK10153357.8T DK2360403T3 (da) 2010-02-11 2010-02-11 Ventil-aktuator med overbelastningskobling, der kan tilpasses
ES10153357T ES2394267T3 (es) 2010-02-11 2010-02-11 Accionamiento regulador de válvula con acoplamiento de sobrecarga
US12/929,739 US8490943B2 (en) 2010-02-11 2011-02-11 Valve actuator with customizable overload clutch
CN201110078000XA CN102155578B (zh) 2010-02-11 2011-02-11 具有可调过载离合器的阀门执行器

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP10153357A EP2360403B1 (fr) 2010-02-11 2010-02-11 Actionneur de soupape avec couplage de limitation du couple réglable

Publications (2)

Publication Number Publication Date
EP2360403A1 EP2360403A1 (fr) 2011-08-24
EP2360403B1 true EP2360403B1 (fr) 2012-09-05

Family

ID=43064594

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10153357A Active EP2360403B1 (fr) 2010-02-11 2010-02-11 Actionneur de soupape avec couplage de limitation du couple réglable

Country Status (5)

Country Link
US (1) US8490943B2 (fr)
EP (1) EP2360403B1 (fr)
CN (1) CN102155578B (fr)
DK (1) DK2360403T3 (fr)
ES (1) ES2394267T3 (fr)

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CN105135039B (zh) * 2015-08-24 2017-12-29 上海阀门五厂有限公司 一种扭矩超载控制保护手动装置
CN105344536A (zh) * 2015-11-24 2016-02-24 余储 一种防断电的散热型热水器出水喷头组件
CN105363613A (zh) * 2015-11-24 2016-03-02 晋江市晋美日用品有限公司 一种防尘的热水器出水喷头组件
CN105251644B (zh) * 2015-11-24 2017-06-16 张海洋 一种热水器出水喷头组件
CN105805399B (zh) * 2016-05-18 2018-01-12 四川大学 一种阀门启闭助力装置
KR102074587B1 (ko) * 2018-09-12 2020-02-06 지에스건설 주식회사 온수 난방시스템
DE102021134550A1 (de) 2021-12-23 2023-06-29 Auma Riester Gmbh & Co. Kg Stellantrieb

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Also Published As

Publication number Publication date
CN102155578A (zh) 2011-08-17
CN102155578B (zh) 2013-11-06
US8490943B2 (en) 2013-07-23
DK2360403T3 (da) 2012-10-01
US20110204274A1 (en) 2011-08-25
ES2394267T3 (es) 2013-01-30
EP2360403A1 (fr) 2011-08-24

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